177 isn't particularly ridiculous having just done jumping jacks, higher than i would expect, but not shocking. as for your resting heart rate, theres a whole ton of factors, some that people have mentioned, but even stuff like caffeine, sugar, stress, those will all raise your heart rate. as for 'working out', lifting weights isn't gonna help cardio if that's what you mean, if you do some cardio type stuff 3 times a week, then, well your heart rate is super high